The 1911 was designed to be carried in "condition one"... that is... round in the chamber, hammer back, and safety on. I've been carrying that way for over 40 years, with no problems at all. Holster choice is very subjective, but my holsters are made by Kirkpatrick Leather, Laredo TX. ... this particular one,
Kirkpatrick Leather Concealment Holsters - The Texas Strong Side
or this one .....
Kirkpatrick Concealment Leather Holsters - The Under Cover